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Methodologist Lilian Yahng presents an overview of survey research and design. She describes the types of data that surveys can effectively collect, highlights the steps in survey research, and introduces the total research error method for quality control.
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Professor Mahtash Esfandiari identifies and describes three main types of experimental design: observational studies, real experimental designs, and quasi-experimental designs. She provides several examples from actual research projects.
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Ettore Sottsass (geb. 1917) ist einer der bedeutendsten lebenden Gestalter. Er ist aber auch ein leidenschaftlich Reisender, der in den hintersten Winkeln der Welt nach Antworten auf Fragen nach dem Sinn und der emotionalen Funktion der Dinge sucht, mit denen wir uns umgeben.Für das Weltunternehmen Olivetti entwarf Sottsass eine ganze Reihe legendärer Design-Klassiker. 1980 war er Mitbegründer der berühmten Gruppe Memphis, die das Design revolutionierte und zu einem Phänomen der Pop-Kultur machte. Ettore Sottsass hat sich in bahnbrechenden Arbeiten schon immer über alle Dogmen von Form und Funktion hinweggesetzt. Heute beeinflusst der grosse Anreger und Unruhestifter von seinem Studio in Mailand aus die Welt der Dinge und die Sprache der Architektur.
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Factors such as participant selection, extraneous variables, and unknown factors can affect the validity of research findings. This video explains the pitfalls of scientific research and proposes strategies to overcome each one.
Experimental design. --- Research --- Methodology.
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Dr Stacey Giroux outlines issues to consider when writing a survey or questionnaire. She also describes the cognitive aspects of survey methodology and survey taking.
Questionnaires --- Surveys. --- Design.
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Professor Beth C. Weitzman discusses how to design experiments. Experiments grow out of questions that are interesting to people and are used to look at the impact of one factor on other factors. Weitzman explains how to design the experiment, conduct the experiment, and assess the results.
Experimental design. --- Research --- Methodology.
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